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Relief Valve 4-4820

Safety Valves (Brass Type 4-4909
Relief Valve 4-4821

Remplaces Knorr 4455/1

Original Ref. BD Ref.
1609497 (Volvo) 4-4820
1629727 (Volvo)
1585876 (Volvo)
7401629727 (Renault)
KW 4455/1 (Knorr)
KW 5271/1 (Knorr)
Brand Cross Reference
— KW4451/1
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Description

Relief valves open when the pressure behind them exceeds the set figure and close again once it drops, so the circuit cannot be over-pressurised if a regulator fails.

The Buyukdemir reference for this item is 4-4820.

It cross-refers to the original equipment numbers KW4451/1, 1609497, KW5271/1, 1629727, 7401629727, 1585876.

Related items in this range: 4-4822, 4-4821.

Manufactured by Büyükdemir Otomotiv in Istanbul, Türkiye, a producer of compressed-air brake and pneumatic components for trucks and trailers since 1957.